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ftmemsim-valgrind/coregrind/m_syswrap/syswrap-nanomips-linux.c
Lubomir Rintel a21e890f82 Add close_range(2) support 
This is a system call introduced in Linux 5.9.

It's typically used to bulk-close file descriptors that a process inherited
without having desired so and doesn't want to pass them to its offspring
for security reasons. For this reason the sensible upper limit value tends
to be unknown and the users prefer to stay on the safe side by setting it
high.

This is a bit peculiar because, if unfiltered, the syscall could end up
closing descriptors Valgrind uses for its purposes, ending in no end of
mayhem and suffering.

This patch adjusts the upper bounds to a safe value and then skips over
the descriptor Valgrind uses by potentially calling the real system call
with sub-ranges that are safe to close.

The call can fail on negative ranges and bad flags -- we're dealing with
the first condition ourselves while letting the real call fail on bad
flags.

https://bugs.kde.org/show_bug.cgi?id=439090
2021-10-12 22:58:45 +02:00

856 lines
34 KiB
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/*--------------------------------------------------------------------*/
/*--- Platform-specific syscalls stuff. syswrap-nanomips-linux.c ----*/
/*--------------------------------------------------------------------*/
/*
This file is part of Valgrind, a dynamic binary instrumentation
framework.
Copyright (C) 2017-2018 RT-RK
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, see <http://www.gnu.org/licenses/>.
The GNU General Public License is contained in the file COPYING.
*/
#if defined(VGP_nanomips_linux)
#include "pub_core_basics.h"
#include "pub_core_vki.h"
#include "pub_core_vkiscnums.h"
#include "pub_core_threadstate.h"
#include "pub_core_aspacemgr.h"
#include "pub_core_debuglog.h"
#include "pub_core_libcbase.h"
#include "pub_core_libcassert.h"
#include "pub_core_libcprint.h"
#include "pub_core_libcproc.h"
#include "pub_core_libcsignal.h"
#include "pub_core_options.h"
#include "pub_core_scheduler.h"
#include "pub_core_sigframe.h" // For VG_(sigframe_destroy)()
#include "pub_core_signals.h"
#include "pub_core_syscall.h"
#include "pub_core_syswrap.h"
#include "pub_core_tooliface.h"
#include "pub_core_transtab.h" // VG_(discard_translations)
#include "priv_types_n_macros.h"
#include "priv_syswrap-generic.h" /* for decls of generic wrappers */
#include "priv_syswrap-linux.h" /* for decls of linux-ish wrappers */
#include "priv_syswrap-main.h"
#include "pub_core_debuginfo.h" // VG_(di_notify_*)
#include "pub_core_xarray.h"
#include "pub_core_clientstate.h" // VG_(brk_base), VG_(brk_limit)
#include "pub_core_errormgr.h"
#include "pub_core_gdbserver.h" // VG_(gdbserver)
#include "pub_core_libcfile.h"
#include "pub_core_machine.h" // VG_(get_SP)
#include "pub_core_mallocfree.h"
#include "pub_core_stacktrace.h" // For VG_(get_and_pp_StackTrace)()
#include "pub_core_ume.h"
#include "priv_syswrap-generic.h"
#include "config.h"
#include <errno.h>
/* ---------------------------------------------------------------------
clone() handling
------------------------------------------------------------------ */
/* Call f(arg1), but first switch stacks, using 'stack' as the new
stack, and use 'retaddr' as f's return-to address. Also, clear all
the integer registers before entering f.*/
__attribute__ ((noreturn))
void ML_ (call_on_new_stack_0_1) (Addr stack, Addr retaddr,
void (*f) (Word), Word arg1);
// a0 = stack
// a1 = retaddr
// a2 = f
// a3 = arg1
asm (
".text\n"
".globl vgModuleLocal_call_on_new_stack_0_1 \n"
"vgModuleLocal_call_on_new_stack_0_1: \n"
" move $sp, $a0 \n\t" // stack to $sp
" move $ra, $a1 \n\t" // retaddr to $ra
" move $t9, $a2 \n\t" // f to t9
" move $a0, $a3 \n\t" // arg1 to $a0
" li $t4, 0 \n\t" // zero all GP regs
" li $t5, 0 \n\t"
" li $a1, 0 \n\t"
" li $a2, 0 \n\t"
" li $a3, 0 \n\t"
" li $t0, 0 \n\t"
" li $t1, 0 \n\t"
" li $t2, 0 \n\t"
" li $t3, 0 \n\t"
" li $s0, 0 \n\t"
" li $s1, 0 \n\t"
" li $s2, 0 \n\t"
" li $s3, 0 \n\t"
" li $s4, 0 \n\t"
" li $s5, 0 \n\t"
" li $s6, 0 \n\t"
" li $s7, 0 \n\t"
" li $t8, 0 \n\t"
" jrc $t9 \n\t" // jump to dst
" break 0x7 \n" // should never get here
".previous\n"
);
/*
Perform a clone system call. clone is strange because it has
fork()-like return-twice semantics, so it needs special
handling here.
Upon entry, we have:
int (fn)(void*) in $a0 0
void* child_stack in $a1 4
int flags in $a2 8
void* arg in $a3 12
pid_t* child_tid in $a4 16
pid_t* parent_tid in $a5 20
void* tls_ptr in $a6 24
System call requires:
int $__NR_clone in $t4
int flags in $a0 0
void* child_stack in $a1 4
pid_t* parent_tid in $a2 8
void* tls_ptr in $a3 12
pid_t* child_tid in $a4 16
int clone(int (*fn)(void *arg), void *child_stack, int flags, void *arg,
void *parent_tidptr, void *tls, void *child_tidptr)
Returns an Int encoded in the linux-mips way, not a SysRes.
*/
#define __NR_CLONE VG_STRINGIFY(__NR_clone)
#define __NR_EXIT VG_STRINGIFY(__NR_exit)
// See priv_syswrap-linux.h for arg profile.
asm (
" .text \n"
" .set noreorder \n"
" .set nomacro \n"
" .globl do_syscall_clone_nanomips_linux \n"
" do_syscall_clone_nanomips_linux: \n\t"
" addiu $sp, $sp, -16 \n\t"
" sw $ra, 0($sp) \n\t"
" sw $fp, 4($sp) \n\t"
" sw $gp, 8($sp) \n\t"
" addiu $a1, $a1, -16 \n\t"
" sw $a0, 0($a1) \n\t" /* fn */
" sw $a3, 4($a1) \n\t" /* arg */
/* 1. arg for syscalls */
" move $a0, $a2 \n\t" /* flags */
" move $a2, $a5 \n\t" /* parent */
" move $a3, $a6 \n\t" /* tls */
/* 2. do a syscall to clone */
" li $t4, " __NR_CLONE "\n\t" /* __NR_clone */
" syscall[32] \n\t"
/* 3. See if we are a child, call fn and after that exit */
" bnezc $a0, p_or_error \n\t"
" lw $t9, 0($sp) \n\t"
" lw $a0, 4($sp) \n\t"
" jalrc $t9 \n\t"
" li $t4, " __NR_EXIT "\n\t" /* NR_exit */
" syscall[32] \n"
/* 4. If we are parent or error, just return to caller */
" p_or_error: \n\t"
" lw $ra, 0($sp) \n\t"
" lw $fp, 4($sp) \n\t"
" lw $gp, 8($sp) \n\t"
" addiu $sp, $sp, 16 \n\t"
" jrc $ra\n"
" .previous\n"
);
#undef __NR_CLONE
#undef __NR_EXIT
// forward declarations
static SysRes sys_set_tls (ThreadId tid, Addr tlsptr);
static SysRes nanomips_PRE_sys_mmap (ThreadId tid,
UWord arg1, UWord arg2, UWord arg3,
UWord arg4, UWord arg5, Off64T arg6);
/* ---------------------------------------------------------------------
More thread stuff
------------------------------------------------------------------ */
// MIPS doesn't have any architecture specific thread stuff that
// needs to be cleaned up
void
VG_ (cleanup_thread) (ThreadArchState * arch) { }
SysRes sys_set_tls ( ThreadId tid, Addr tlsptr )
{
VG_(threads)[tid].arch.vex.guest_ULR = tlsptr;
return VG_(mk_SysRes_Success)( 0 );
}
/* ---------------------------------------------------------------------
mips handler for mmap and mmap2
------------------------------------------------------------------ */
static void notify_core_of_mmap(Addr a, SizeT len, UInt prot,
UInt flags, Int fd, Off64T offset)
{
Bool d;
/* 'a' is the return value from a real kernel mmap, hence: */
vg_assert(VG_IS_PAGE_ALIGNED(a));
/* whereas len is whatever the syscall supplied. So: */
len = VG_PGROUNDUP(len);
d = VG_(am_notify_client_mmap)( a, len, prot, flags, fd, offset );
if (d)
VG_(discard_translations)( a, (ULong)len,
"notify_core_of_mmap" );
}
static void notify_tool_of_mmap(Addr a, SizeT len, UInt prot, ULong di_handle)
{
Bool rr, ww, xx;
/* 'a' is the return value from a real kernel mmap, hence: */
vg_assert(VG_IS_PAGE_ALIGNED(a));
/* whereas len is whatever the syscall supplied. So: */
len = VG_PGROUNDUP(len);
rr = toBool(prot & VKI_PROT_READ);
ww = toBool(prot & VKI_PROT_WRITE);
xx = toBool(prot & VKI_PROT_EXEC);
VG_TRACK( new_mem_mmap, a, len, rr, ww, xx, di_handle );
}
/* Based on ML_(generic_PRE_sys_mmap) from syswrap-generic.c.
If we are trying to do mmap with VKI_MAP_SHARED flag we need to align the
start address on VKI_SHMLBA like we did in
VG_(am_mmap_file_float_valgrind_flags)
*/
static SysRes nanomips_PRE_sys_mmap(ThreadId tid,
UWord arg1, UWord arg2, UWord arg3,
UWord arg4, UWord arg5, Off64T arg6)
{
Addr advised;
SysRes sres;
MapRequest mreq;
Bool mreq_ok;
if (arg2 == 0) {
/* SuSV3 says: If len is zero, mmap() shall fail and no mapping
shall be established. */
return VG_(mk_SysRes_Error)( VKI_EINVAL );
}
if (!VG_IS_PAGE_ALIGNED(arg1)) {
/* zap any misaligned addresses. */
/* SuSV3 says misaligned addresses only cause the MAP_FIXED case
to fail. Here, we catch them all. */
return VG_(mk_SysRes_Error)( VKI_EINVAL );
}
if (!VG_IS_PAGE_ALIGNED(arg6)) {
/* zap any misaligned offsets. */
/* SuSV3 says: The off argument is constrained to be aligned and
sized according to the value returned by sysconf() when
passed _SC_PAGESIZE or _SC_PAGE_SIZE. */
return VG_(mk_SysRes_Error)( VKI_EINVAL );
}
/* Figure out what kind of allocation constraints there are
(fixed/hint/any), and ask aspacem what we should do. */
mreq.start = arg1;
mreq.len = arg2;
if (arg4 & VKI_MAP_FIXED) {
mreq.rkind = MFixed;
} else if (arg1 != 0) {
mreq.rkind = MHint;
} else {
mreq.rkind = MAny;
}
if ((VKI_SHMLBA > VKI_PAGE_SIZE) && (VKI_MAP_SHARED & arg4)
&& !(VKI_MAP_FIXED & arg4))
mreq.len = arg2 + VKI_SHMLBA - VKI_PAGE_SIZE;
/* Enquire ... */
advised = VG_(am_get_advisory)( &mreq, True/*client*/, &mreq_ok );
if ((VKI_SHMLBA > VKI_PAGE_SIZE) && (VKI_MAP_SHARED & arg4)
&& !(VKI_MAP_FIXED & arg4))
advised = VG_ROUNDUP(advised, VKI_SHMLBA);
if (!mreq_ok) {
/* Our request was bounced, so we'd better fail. */
return VG_(mk_SysRes_Error)( VKI_EINVAL );
}
/* Otherwise we're OK (so far). Install aspacem's choice of
address, and let the mmap go through. */
sres = VG_(am_do_mmap_NO_NOTIFY)(advised, arg2, arg3,
arg4 | VKI_MAP_FIXED,
arg5, arg6);
/* A refinement: it may be that the kernel refused aspacem's choice
of address. If we were originally asked for a hinted mapping,
there is still a last chance: try again at any address.
Hence: */
if (mreq.rkind == MHint && sr_isError(sres)) {
mreq.start = 0;
mreq.len = arg2;
mreq.rkind = MAny;
advised = VG_(am_get_advisory)( &mreq, True/*client*/, &mreq_ok );
if (!mreq_ok) {
/* Our request was bounced, so we'd better fail. */
return VG_(mk_SysRes_Error)( VKI_EINVAL );
}
/* and try again with the kernel */
sres = VG_(am_do_mmap_NO_NOTIFY)(advised, arg2, arg3,
arg4 | VKI_MAP_FIXED,
arg5, arg6);
}
if (!sr_isError(sres)) {
ULong di_handle;
/* Notify aspacem. */
notify_core_of_mmap(
(Addr)sr_Res(sres), /* addr kernel actually assigned */
arg2, /* length */
arg3, /* prot */
arg4, /* the original flags value */
arg5, /* fd */
arg6 /* offset */
);
/* Load symbols? */
di_handle = VG_(di_notify_mmap)( (Addr)sr_Res(sres),
False/*allow_SkFileV*/, (Int)arg5 );
/* Notify the tool. */
notify_tool_of_mmap(
(Addr)sr_Res(sres), /* addr kernel actually assigned */
arg2, /* length */
arg3, /* prot */
di_handle /* so the tool can refer to the read debuginfo later,
if it wants. */
);
}
/* Stay sane */
if (!sr_isError(sres) && (arg4 & VKI_MAP_FIXED))
vg_assert(sr_Res(sres) == arg1);
return sres;
}
/* ---------------------------------------------------------------------
PRE/POST wrappers for mips/Linux-specific syscalls
------------------------------------------------------------------ */
#define PRE(name) DEFN_PRE_TEMPLATE(mips_linux, name)
#define POST(name) DEFN_POST_TEMPLATE(mips_linux, name)
/* Add prototypes for the wrappers declared here, so that gcc doesn't
harass us for not having prototypes. Really this is a kludge --
the right thing to do is to make these wrappers 'static' since they
aren't visible outside this file, but that requires even more macro
magic. */
DECL_TEMPLATE (mips_linux, sys_mmap2);
DECL_TEMPLATE (mips_linux, sys_rt_sigreturn);
DECL_TEMPLATE (mips_linux, sys_set_thread_area);
DECL_TEMPLATE (mips_linux, sys_ptrace);
DECL_TEMPLATE (mips_linux, sys_unshare);
DECL_TEMPLATE (mips_linux, sys_reboot);
DECL_TEMPLATE (mips_linux, sys_setdomainname);
DECL_TEMPLATE (mips_linux, sys_sethostname);
DECL_TEMPLATE (mips_linux, sys_swapon);
DECL_TEMPLATE (mips_linux, sys_swapoff);
PRE(sys_mmap2)
{
/* Exactly like sys_mmap() except the file offset is specified in 4096 byte
units rather than bytes, so that it can be used for files bigger than
2^32 bytes. */
SysRes r;
PRINT("sys_mmap2 ( %#lx, %lu, %ld, %ld, %ld, %ld )",
ARG1, ARG2, SARG3, SARG4, SARG5, SARG6);
PRE_REG_READ6(long, "mmap2", unsigned long, start, unsigned long, length,
unsigned long, prot, unsigned long, flags,
unsigned long, fd, unsigned long, offset);
r = nanomips_PRE_sys_mmap(tid, ARG1, ARG2, ARG3, ARG4, ARG5,
4096 * (Off64T) ARG6);
SET_STATUS_from_SysRes(r);
}
PRE(sys_ptrace)
{
PRINT("sys_ptrace ( %ld, %ld, %#lx, %#lx )", SARG1, SARG2, ARG3, ARG4);
PRE_REG_READ4(int, "ptrace",
long, request, long, pid, unsigned long, addr,
unsigned long, data);
switch (ARG1) {
case VKI_PTRACE_PEEKTEXT:
case VKI_PTRACE_PEEKDATA:
case VKI_PTRACE_PEEKUSR:
PRE_MEM_WRITE("ptrace(peek)", ARG4, sizeof(long));
break;
case VKI_PTRACE_GETEVENTMSG:
PRE_MEM_WRITE("ptrace(geteventmsg)", ARG4, sizeof(unsigned long));
break;
case VKI_PTRACE_GETSIGINFO:
PRE_MEM_WRITE("ptrace(getsiginfo)", ARG4, sizeof(vki_siginfo_t));
break;
case VKI_PTRACE_SETSIGINFO:
PRE_MEM_READ("ptrace(setsiginfo)", ARG4, sizeof(vki_siginfo_t));
break;
case VKI_PTRACE_GETREGSET:
ML_(linux_PRE_getregset)(tid, ARG3, ARG4);
break;
default:
break;
}
}
POST(sys_ptrace)
{
switch (ARG1) {
case VKI_PTRACE_TRACEME:
ML_(linux_POST_traceme)(tid);
break;
case VKI_PTRACE_PEEKTEXT:
case VKI_PTRACE_PEEKDATA:
case VKI_PTRACE_PEEKUSR:
POST_MEM_WRITE (ARG4, sizeof(long));
break;
case VKI_PTRACE_GETEVENTMSG:
POST_MEM_WRITE (ARG4, sizeof(unsigned long));
break;
case VKI_PTRACE_GETSIGINFO:
POST_MEM_WRITE (ARG4, sizeof(vki_siginfo_t));
break;
case VKI_PTRACE_GETREGSET:
ML_(linux_POST_getregset)(tid, ARG3, ARG4);
break;
default:
break;
}
}
PRE(sys_rt_sigreturn)
{
ThreadState* tst;
PRINT ("rt_sigreturn ( )");
vg_assert (VG_ (is_valid_tid) (tid));
vg_assert (tid >= 1 && tid < VG_N_THREADS);
vg_assert (VG_ (is_running_thread) (tid));
tst = VG_(get_ThreadState)(tid);
ML_(fixup_guest_state_to_restart_syscall)(&tst->arch);
/* Restore register state from frame and remove it */
VG_ (sigframe_destroy) (tid, True);
/* Tell the driver not to update the guest state with the "result",
and set a bogus result to keep it happy. */
*flags |= SfNoWriteResult;
SET_STATUS_Success (0);
/* Check to see if any signals arose as a result of this. */
*flags |= SfPollAfter;
}
PRE(sys_set_thread_area)
{
PRINT ("set_thread_area (%lx)", ARG1);
PRE_REG_READ1(long, "set_thread_area", unsigned long, addr);
SET_STATUS_from_SysRes( sys_set_tls( tid, ARG1 ) );
}
PRE(sys_unshare)
{
PRINT("sys_unshare ( %lu )", ARG1);
PRE_REG_READ1(long, "sys_unshare", unsigned long, flags);
}
PRE(sys_reboot)
{
PRINT("sys_reboot ( %ld, %lu, %lu, %#lx )", SARG1, ARG2, ARG3, ARG4);
// An approximation. ARG4 is only read conditionally by the kernel
PRE_REG_READ4(int, "reboot",
int, magic1, int, magic2, unsigned int, cmd,
void *, arg);
*flags |= SfMayBlock;
}
PRE(sys_setdomainname)
{
PRINT ("sys_setdomainname ( %#lx, %ld )", ARG1, SARG2);
PRE_REG_READ2 (long, "setdomainname", const void *, name, int, len);
}
PRE(sys_sethostname)
{
PRINT ("sys_sethostname ( %#lx, %ld )", ARG1, SARG2);
PRE_REG_READ2 (long, "sethostname", const void *, name, int, len);
}
PRE(sys_swapon)
{
PRINT("sys_swapon ( %#lx, %#lx )", ARG1, ARG2);
PRE_REG_READ2(long, "swapon", const void *, path, int, flags);
}
PRE(sys_swapoff)
{
PRINT("sys_swapoff ( %#lx )", ARG1);
PRE_REG_READ1(long, "swapoff", const void *, path);
}
#undef PRE
#undef POST
/* ---------------------------------------------------------------------
The mips/Linux syscall table
------------------------------------------------------------------ */
#define PLAX_(sysno, name) WRAPPER_ENTRY_X_(mips_linux, sysno, name)
#define PLAXY(sysno, name) WRAPPER_ENTRY_XY(mips_linux, sysno, name)
// This table maps from __NR_xxx syscall numbers (from
// linux/include/asm-mips/unistd.h) to the appropriate PRE/POST sys_foo()
// wrappers on mips (as per sys_call_table in linux/arch/mips/kernel/entry.S).
//
// For those syscalls not handled by Valgrind, the annotation indicate its
// arch/OS combination, eg. */* (generic), */Linux (Linux only), ?/?
// (unknown).
static SyscallTableEntry syscall_main_table[] = {
LINXY (__NR_io_setup, sys_io_setup),
LINX_ (__NR_io_destroy, sys_io_destroy),
LINX_ (__NR_io_submit, sys_io_submit),
LINXY (__NR_io_cancel, sys_io_cancel),
LINXY (__NR_io_getevents, sys_io_getevents),
LINX_ (__NR_setxattr, sys_setxattr),
LINX_ (__NR_lsetxattr, sys_lsetxattr),
LINX_ (__NR_fsetxattr, sys_fsetxattr),
LINXY (__NR_getxattr, sys_getxattr),
LINXY (__NR_lgetxattr, sys_lgetxattr),
LINXY (__NR_fgetxattr, sys_fgetxattr),
LINXY (__NR_listxattr, sys_listxattr),
LINXY (__NR_llistxattr, sys_llistxattr),
LINXY (__NR_flistxattr, sys_flistxattr),
LINX_ (__NR_removexattr, sys_removexattr),
LINX_ (__NR_lremovexattr, sys_lremovexattr),
LINX_ (__NR_fremovexattr, sys_fremovexattr),
GENXY (__NR_getcwd, sys_getcwd),
LINXY (__NR_lookup_dcookie, sys_lookup_dcookie),
LINXY (__NR_eventfd2, sys_eventfd2),
LINXY (__NR_epoll_create1, sys_epoll_create1),
LINX_ (__NR_epoll_ctl, sys_epoll_ctl),
LINXY (__NR_epoll_pwait, sys_epoll_pwait),
GENXY (__NR_dup, sys_dup),
LINXY (__NR_dup3, sys_dup3),
LINXY (__NR_fcntl64, sys_fcntl64),
LINXY (__NR_inotify_init1, sys_inotify_init1),
LINX_ (__NR_inotify_add_watch, sys_inotify_add_watch),
LINX_ (__NR_inotify_rm_watch, sys_inotify_rm_watch),
LINXY (__NR_ioctl, sys_ioctl),
LINX_ (__NR_ioprio_set, sys_ioprio_set),
LINX_ (__NR_ioprio_get, sys_ioprio_get),
GENX_ (__NR_flock, sys_flock),
LINX_ (__NR_mknodat, sys_mknodat),
LINX_ (__NR_mkdirat, sys_mkdirat),
LINX_ (__NR_unlinkat, sys_unlinkat),
LINX_ (__NR_symlinkat, sys_symlinkat),
LINX_ (__NR_linkat, sys_linkat),
LINX_ (__NR_umount2, sys_umount),
LINX_ (__NR_mount, sys_mount),
LINX_ (__NR_pivot_root, sys_pivot_root),
GENX_ (__NR_truncate64, sys_truncate64),
GENX_ (__NR_ftruncate64, sys_ftruncate64),
LINX_ (__NR_fallocate, sys_fallocate),
LINX_ (__NR_faccessat, sys_faccessat),
GENX_ (__NR_chdir, sys_chdir),
GENX_ (__NR_fchdir, sys_fchdir),
GENX_ (__NR_chroot, sys_chroot),
GENX_ (__NR_fchmod, sys_fchmod),
LINX_ (__NR_fchmodat, sys_fchmodat),
LINX_ (__NR_fchownat, sys_fchownat),
GENX_ (__NR_fchown, sys_fchown),
LINXY (__NR_openat, sys_openat),
GENXY (__NR_close, sys_close),
LINX_ (__NR_vhangup, sys_vhangup),
LINXY (__NR_pipe2, sys_pipe2),
LINX_ (__NR_quotactl, sys_quotactl),
GENXY (__NR_getdents64, sys_getdents64),
LINXY (__NR__llseek, sys_llseek),
GENXY (__NR_read, sys_read),
GENX_ (__NR_write, sys_write),
GENXY (__NR_readv, sys_readv),
GENX_ (__NR_writev, sys_writev),
GENXY (__NR_pread64, sys_pread64),
GENX_ (__NR_pwrite64, sys_pwrite64),
LINXY (__NR_preadv, sys_preadv),
LINX_ (__NR_pwritev, sys_pwritev),
LINXY (__NR_sendfile64, sys_sendfile64),
LINXY (__NR_pselect6, sys_pselect6),
LINXY (__NR_ppoll, sys_ppoll),
LINXY (__NR_signalfd4, sys_signalfd4),
LINX_ (__NR_vmsplice, sys_vmsplice),
LINX_ (__NR_splice, sys_splice),
LINX_ (__NR_tee, sys_tee),
LINX_ (__NR_readlinkat, sys_readlinkat),
GENX_ (__NR_sync, sys_sync),
GENX_ (__NR_fsync, sys_fsync),
GENX_ (__NR_fdatasync, sys_fdatasync),
LINX_ (__NR_sync_file_range2, sys_sync_file_range2),
LINXY (__NR_timerfd_create, sys_timerfd_create),
LINXY (__NR_timerfd_settime, sys_timerfd_settime),
LINXY (__NR_timerfd_gettime, sys_timerfd_gettime),
LINX_ (__NR_utimensat, sys_utimensat),
GENX_ (__NR_acct, sys_acct),
LINXY (__NR_capget, sys_capget),
LINX_ (__NR_capset, sys_capset),
LINX_ (__NR_personality, sys_personality),
GENX_ (__NR_exit, sys_exit),
LINX_ (__NR_exit_group, sys_exit_group),
LINXY (__NR_waitid, sys_waitid),
LINX_ (__NR_set_tid_address, sys_set_tid_address),
PLAX_ (__NR_unshare, sys_unshare),
LINXY (__NR_futex, sys_futex),
LINX_ (__NR_set_robust_list, sys_set_robust_list),
LINXY (__NR_get_robust_list, sys_get_robust_list),
GENXY (__NR_nanosleep, sys_nanosleep),
GENXY (__NR_getitimer, sys_getitimer),
GENXY (__NR_setitimer, sys_setitimer),
GENX_ (__NR_kexec_load, sys_ni_syscall),
LINX_ (__NR_init_module, sys_init_module),
LINX_ (__NR_delete_module, sys_delete_module),
LINXY (__NR_timer_create, sys_timer_create),
LINXY (__NR_timer_gettime, sys_timer_gettime),
LINX_ (__NR_timer_getoverrun, sys_timer_getoverrun),
LINXY (__NR_timer_settime, sys_timer_settime),
LINX_ (__NR_timer_delete, sys_timer_delete),
LINX_ (__NR_clock_settime, sys_clock_settime),
LINXY (__NR_clock_gettime, sys_clock_gettime),
LINXY (__NR_clock_getres, sys_clock_getres),
LINXY (__NR_clock_nanosleep, sys_clock_nanosleep),
LINXY (__NR_syslog, sys_syslog),
PLAXY (__NR_ptrace, sys_ptrace),
LINXY (__NR_sched_setparam, sys_sched_setparam),
LINX_ (__NR_sched_setscheduler, sys_sched_setscheduler),
LINX_ (__NR_sched_getscheduler, sys_sched_getscheduler),
LINXY (__NR_sched_getparam, sys_sched_getparam),
LINX_ (__NR_sched_setaffinity, sys_sched_setaffinity),
LINXY (__NR_sched_getaffinity, sys_sched_getaffinity),
LINX_ (__NR_sched_yield, sys_sched_yield),
LINX_ (__NR_sched_get_priority_max, sys_sched_get_priority_max),
LINX_ (__NR_sched_get_priority_min, sys_sched_get_priority_min),
LINX_ (__NR_sched_rr_get_interval, sys_sched_rr_get_interval),
GENX_ (__NR_kill, sys_kill),
LINXY (__NR_tkill, sys_tkill),
LINXY (__NR_tgkill, sys_tgkill),
GENXY (__NR_sigaltstack, sys_sigaltstack),
LINX_ (__NR_rt_sigsuspend, sys_rt_sigsuspend),
LINXY (__NR_rt_sigaction, sys_rt_sigaction),
LINXY (__NR_rt_sigprocmask, sys_rt_sigprocmask),
LINXY (__NR_rt_sigpending, sys_rt_sigpending),
LINXY (__NR_rt_sigtimedwait, sys_rt_sigtimedwait),
LINXY (__NR_rt_sigqueueinfo, sys_rt_sigqueueinfo),
PLAX_ (__NR_rt_sigreturn, sys_rt_sigreturn),
GENX_ (__NR_setpriority, sys_setpriority),
GENX_ (__NR_getpriority, sys_getpriority),
PLAX_ (__NR_reboot, sys_reboot),
GENX_ (__NR_setregid, sys_setregid),
GENX_ (__NR_setgid, sys_setgid),
GENX_ (__NR_setreuid, sys_setreuid),
GENX_ (__NR_setuid, sys_setuid),
LINX_ (__NR_setresuid, sys_setresuid),
LINXY (__NR_getresuid, sys_getresuid),
LINX_ (__NR_setresgid, sys_setresgid),
LINXY (__NR_getresgid, sys_getresgid),
LINX_ (__NR_setfsuid, sys_setfsuid),
LINX_ (__NR_setfsgid, sys_setfsgid),
GENXY (__NR_times, sys_times),
GENX_ (__NR_setpgid, sys_setpgid),
GENX_ (__NR_getpgid, sys_getpgid),
GENX_ (__NR_getsid, sys_getsid),
GENX_ (__NR_setsid, sys_setsid),
GENXY (__NR_getgroups, sys_getgroups),
GENX_ (__NR_setgroups, sys_setgroups),
GENXY (__NR_uname, sys_newuname),
PLAX_ (__NR_sethostname, sys_sethostname),
PLAX_ (__NR_setdomainname, sys_setdomainname),
GENXY (__NR_getrusage, sys_getrusage),
GENX_ (__NR_umask, sys_umask),
LINXY (__NR_prctl, sys_prctl),
LINXY (__NR_getcpu, sys_getcpu),
GENXY (__NR_gettimeofday, sys_gettimeofday),
GENX_ (__NR_settimeofday, sys_settimeofday),
LINXY (__NR_adjtimex, sys_adjtimex),
GENX_ (__NR_getpid, sys_getpid),
GENX_ (__NR_getppid, sys_getppid),
GENX_ (__NR_getuid, sys_getuid),
GENX_ (__NR_geteuid, sys_geteuid),
GENX_ (__NR_getgid, sys_getgid),
GENX_ (__NR_getegid, sys_getegid),
LINX_ (__NR_gettid, sys_gettid),
LINXY (__NR_sysinfo, sys_sysinfo),
LINXY (__NR_mq_open, sys_mq_open),
LINX_ (__NR_mq_unlink, sys_mq_unlink),
LINX_ (__NR_mq_timedsend, sys_mq_timedsend),
LINXY (__NR_mq_timedreceive, sys_mq_timedreceive),
LINX_ (__NR_mq_notify, sys_mq_notify),
LINXY (__NR_mq_getsetattr, sys_mq_getsetattr),
LINX_ (__NR_msgget, sys_msgget),
LINXY (__NR_msgctl, sys_msgctl),
LINXY (__NR_msgrcv, sys_msgrcv),
LINX_ (__NR_msgsnd, sys_msgsnd),
LINX_ (__NR_semget, sys_semget),
LINXY (__NR_semctl, sys_semctl),
LINX_ (__NR_semtimedop, sys_semtimedop),
LINX_ (__NR_semop, sys_semop),
LINX_ (__NR_shmget, sys_shmget),
LINXY (__NR_shmctl, sys_shmctl),
LINXY (__NR_shmat, sys_shmat),
LINXY (__NR_shmdt, sys_shmdt),
LINXY (__NR_socket, sys_socket),
LINXY (__NR_socketpair, sys_socketpair),
LINX_ (__NR_bind, sys_bind),
LINX_ (__NR_listen, sys_listen),
LINXY (__NR_accept, sys_accept),
LINX_ (__NR_connect, sys_connect),
LINXY (__NR_getsockname, sys_getsockname),
LINXY (__NR_getpeername, sys_getpeername),
LINX_ (__NR_sendto, sys_sendto),
LINXY (__NR_recvfrom, sys_recvfrom),
LINX_ (__NR_setsockopt, sys_setsockopt),
LINXY (__NR_getsockopt, sys_getsockopt),
LINX_ (__NR_shutdown, sys_shutdown),
LINX_ (__NR_sendmsg, sys_sendmsg),
LINXY (__NR_recvmsg, sys_recvmsg),
LINX_ (__NR_readahead, sys_readahead),
GENX_ (__NR_brk, sys_brk),
GENXY (__NR_munmap, sys_munmap),
GENX_ (__NR_mremap, sys_mremap),
LINX_ (__NR_add_key, sys_add_key),
LINX_ (__NR_request_key, sys_request_key),
LINXY (__NR_keyctl, sys_keyctl),
LINX_ (__NR_clone, sys_clone),
GENX_ (__NR_execve, sys_execve),
PLAX_ (__NR_mmap2, sys_mmap2),
LINX_ (__NR_fadvise64_64, sys_fadvise64_64),
PLAX_ (__NR_swapon, sys_swapon),
PLAX_ (__NR_swapoff, sys_swapoff),
GENXY (__NR_mprotect, sys_mprotect),
GENX_ (__NR_msync, sys_msync),
GENX_ (__NR_mlock, sys_mlock),
GENX_ (__NR_munlock, sys_munlock),
GENX_ (__NR_mlockall, sys_mlockall),
LINX_ (__NR_munlockall, sys_munlockall),
GENXY (__NR_mincore, sys_mincore),
GENX_ (__NR_madvise, sys_madvise),
LINX_ (__NR_mbind, sys_mbind),
LINXY (__NR_get_mempolicy, sys_get_mempolicy),
LINX_ (__NR_set_mempolicy, sys_set_mempolicy),
LINXY (__NR_move_pages, sys_move_pages),
LINXY (__NR_rt_tgsigqueueinfo, sys_rt_tgsigqueueinfo),
LINXY (__NR_perf_event_open, sys_perf_event_open),
LINXY (__NR_accept4, sys_accept4),
LINXY (__NR_recvmmsg, sys_recvmmsg),
PLAX_ (__NR_set_thread_area, sys_set_thread_area),
GENXY (__NR_wait4, sys_wait4),
LINXY (__NR_prlimit64, sys_prlimit64),
LINXY (__NR_fanotify_init, sys_fanotify_init),
LINX_ (__NR_fanotify_mark, sys_fanotify_mark),
LINXY (__NR_name_to_handle_at, sys_name_to_handle_at),
LINXY (__NR_open_by_handle_at, sys_open_by_handle_at),
LINXY (__NR_clock_adjtime, sys_clock_adjtime),
LINX_ (__NR_syncfs, sys_syncfs),
LINXY (__NR_sendmmsg, sys_sendmmsg),
LINXY (__NR_process_vm_readv, sys_process_vm_readv),
LINX_ (__NR_process_vm_writev, sys_process_vm_writev),
LINX_ (__NR_kcmp, sys_kcmp),
LINX_ (__NR_renameat2, sys_renameat2),
LINX_ (__NR_sched_setattr, sys_sched_setattr),
LINXY (__NR_sched_getattr, sys_sched_getattr),
LINXY (__NR_getrandom, sys_getrandom),
LINXY (__NR_memfd_create, sys_memfd_create),
LINXY (__NR_statx, sys_statx),
LINX_ (__NR_setns, sys_setns),
// (__NR_bpf, sys_ni_syscall),
LINX_ (__NR_execveat, sys_execveat),
// (__NR_userfaultfd, sys_ni_syscall),
LINX_ (__NR_membarrier, sys_membarrier),
// (__NR_mlock2, sys_ni_syscall),
// (__NR_copy_file_range, sys_ni_syscall),
// (__NR_preadv2, sys_ni_syscall),
// (__NR_pwritev2, sys_ni_syscall),
// (__NR_pkey_mprotect, sys_ni_syscall),
// (__NR_pkey_alloc, sys_ni_syscall),
// (__NR_pkey_free, sys_ni_syscall),
LINXY (__NR_io_uring_setup, sys_io_uring_setup),
LINXY (__NR_io_uring_enter, sys_io_uring_enter),
LINXY (__NR_io_uring_register, sys_io_uring_register),
GENX_ (__NR_clone3, sys_ni_syscall),
LINXY (__NR_close_range, sys_close_range),
LINX_ (__NR_faccessat2, sys_faccessat2),
};
SyscallTableEntry* ML_(get_linux_syscall_entry) (UInt sysno)
{
const UInt syscall_main_table_size
= sizeof (syscall_main_table) / sizeof (syscall_main_table[0]);
/* Is it in the contiguous initial section of the table? */
if (sysno < syscall_main_table_size) {
SyscallTableEntry * sys = &syscall_main_table[sysno];
if (sys->before == NULL)
return NULL; /* No entry. */
else
return sys;
}
/* Can't find a wrapper. */
return NULL;
}
#endif // defined(VGP_nanomips_linux)
/*--------------------------------------------------------------------*/
/*--- end syswrap-nanomips-linux.c ---*/
/*--------------------------------------------------------------------*/
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